Mykhaliuk, Y. L., Syvolap, V. V. ., & Horokhovskyi, Y. Y. . (2021). Effect of long-term training on heart rate variability, central hemodynamics and physical working capacity in female swimmers with different sports qualifications. Zaporozhye Medical Journal, 23(5). https://doi.org/10.14739/2310-1210.2021.5.237403